Tried and tested variant for optimal ventilation on the ridge and
edge with a highly tear-resistant middle section which
guarantees extremely long UV stability of 10 years due to the
acrylic fleece used.

Specially developed ridge and edge rolls with a ventilation crosssection
of more than 200 cm³, achieved by using a robust PP sheet.
Extremely secure and simple to glue onto the hard cladding thanks
to the high quality 3.5 mm butyl strip